Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

High-pressure vapor liquid equilibria of systems containing ethylene glycol, water and methane Experimental measurements and modeling

Folas, G. K.[Georgios K.], Berg, O. J.[Ole J.], Solbraa, E.[Even], Fredheim, A. O.[Arne O.], Kontogeorgis, G. M., Michelsen, M. L.[Michael L.], Stenby, E. H.[Erling H.]
Fluid Phase Equilib. 2007, 251, 1, 52-58
ABSTRACT
This work presents new experimental phase equilibrium measurements of the binary MEG methane and the ternary MEG water methane system at low temperatures and high pressures which are of interest to applications related to natural gas processing. Emphasis is given to MEG and water solubility measurements in the gas phase. The CPA and SRK EoS, the latter using either conventional or EoS/GE mixing rules are used to predict the solubility of the heavy components in the gas phase. It is concluded that CPA and SRK using the Huron Vidal mixing rule perform equally satisfactory, while CPA requires fewer interaction parameters.
Compounds
# Formula Name
1 C2H6O2 1,2-ethanediol
2 H2O water
3 CH4 methane
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 3
  • 1
  • Mole fraction - 3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • gas volume after depressurization
  • 6
  • POMD
  • 3
  • 1
  • Mole fraction - 3 ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • Liquid
  • Chromatography
  • 9
  • POMD
  • 3
  • 1
  • 2
  • Mole fraction - 1 ; Liquid
  • Mole fraction - 1 ; Gas
  • Mole fraction - 2 ; Gas
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Gas
  • Chromatography
  • Chromatography
  • Chromatography
  • 6